Russian state television accused the United States on Sunday of spying on China and Russia after secretly turning its only remaining air base in Central Asia into a state-of-the-art surveillance center.

Russia has troops just 25 miles (40 kilometers) from the Georgian capital, in violation of the European Union-brokered cease-fire that ended last year's brief war. And in recent weeks, it has put even more soldiers and armored vehicles within striking distance of the city ahead of street protests against Georgia's president.